Improvement in self-acting mules for spinning



altruiF @Wire JonNr o-UMNocK, or sALMoN nALLs, NEW HAMPsHInn Leners,Patent No. 108,688, dated october 25, 1ero.

IMPROVEMENT lN'SELF-ACTING vMULES FOR SPINNING.

The Schedule referred to in these Letters Patent and makingpart of thesame.

Toall persons to whom these presents may come:

.Beit known that I, JOHN OUMNOCK, of Salmon Falls, of the county ofStratford and State of New Hampshire, have invented a new and usefulMechanismhfor Operating the Gam-Shaft of a Self-acting Mule forSpinning; and I do hereby declare the same to be fully described asfollows, reference beingV had to the accompanying drawing, of which-Figure l is a top view.

Figure 2, an end elevation.

Figures 3 and 4, transversesections of such mechanism. i

The sections 'are broken through the middle of the'cam-shaft, oneexhibiting the machinery to the right and the other to the left of theplane of scction.

The object ofthe invention is to produce the nec-,

essary Stoppa-ges of rotary motion ofthe cam-shaft while the mule may bein operation,`and to accomplish this by what mechanics term a positivemotion.

In the drawing- A denotes vthe cam-shaft, which, in this instance, isshown as without its usual cams.

There is fixed on the said shaft a bevel-gear, B,

having sundry arcs `or spaces, a. l) c d, of its periphery withoutteeth, the remainder of the periphery, or the intervening parts, havingarcs, e f g h, ot teeth to engage with those of a beveled pinion, C,fixed on a shaft, D.

The said shaft D has its journals-supported in boxes or bearings in twostandards, i k, there being a spring, Z, applied to one of the saidstandards to rest directly against the shaft D at that point which.

is in the bearing next to the pinion C. lhe spring serves as a cap tothe bearing of the journal, and to admit of the shaft moving laterallyand in a'horizontal direction in case at any time a tooth at oneextremity of any one of the arcs of teeth of the wheel B shouldencountera tooth of the driving-pinion. Were it not for the spring,there would be a liability of breakage of' the teeth or injury to themachine taking place.

The shaft D carries another bevel-gear, E, which in turn engages with agear, F, 'fixed upon a drivingshaft, G, that, when the mule is inoperation, is to have a constant rotary motion impartedto it.

On the end of the cam-shaft A is an escape pinwheel, H, from whose'inner side four studs or pins, mm m m, are extended:

A spring, I, formed and arranged'in manner as rcpresented, operates,with the said series of pins.

Furthermore, from the outer side of the wheel three escape-teeth, n n a,are extended, to operatey with a stud or tooth, o, extended from alever, p.

To the said lever certain vertical-movements are to be imparted, wherebyits tootlro will be brought into and out of the path or paths ofrevolution of the teeth a of the escape-pin wheel. When suchtooth o isin such path and at rest, it will block 'or stop the rotary motion ofthe shaft A, as a'tooth, n, will be carried against the tooth o of thelever, and while the two are in contact no rotary motion ot' theesoapewheel can take place. As soon, however, as the lever may havemoved its tooth o out of engagement with a tooth of the escape-wheel,the spring I, by its pressure against one of the pins of the wheel, willcause the said wheel to turn a little, so as to throw a toothed sectionot' the intermittent gear B into engagement with its drivingpinion,which then will put the gear B in revolution until the next spacewithout teeth of such gear is cn' tered by such driving-pinion. On suchspace receiving the pinion, motion of the intermittent gear andvcam-shaft will cease, and not again take place until the next succeedingarc of teeth of-the intermittent gear is thrown into action with theteeth of the pinion. i

From the above it will be seen how, by the mechanism described, thecam-shaft may have imparted to it an intermittent rotary motion, wherebyits cam may be caused to actin the order required.

I am aware of the subjects of the British patents Nos. 203 of lis-Z6,Y2,141 of 1859, and 1,926 of 1860,

' and make no claiml thereto, or to any device, combination, orarrangement of devices described in either of shaft, to retreat from theformer in a straight line., or

in a line parallel with the two teeth which come together, and returnsto gear in the same line, so that the teeth are not struck at an angleto their sides, and not liable to be broken off; whereas in the Englishcase the gear corresponding to the gear G of my ini vention retreats inthe arc of a circle, andthe teeth,

in retreating from as well as in returning to gear, will p always strikeeach other at an angle to their sides, 1

whereby they are rendered liable soon to become broken olf. c v

Therefore, by the employment of the bevel-gears of the kind describedand in the way set forth, and with the shaft D supported against aspring, l, :L new and importa-nt result follows, and I obtain not onlyzu dumblo but at simpler opemtngmechanism.

I olaim- JOHN OUMNOCK. The combination, with the cam-shaft A, of theinitnesses termittontly-toothed bevel-gear B, the bevel-'gear C, R. 1-I.EDDY,

F, escape-wheel H and its spring I, and escape-lever 1), all arrangedand to operate as hel'einbefore d@-` soribocl.

its shaft 1) and spring-bearing Z, driving-wheels E S. N, PIPER.

